import React, { Component } from 'react'

export default class App extends Component {
  state={
    todoList:[1]
  }
  render() {
   
    return (
      <div>
      {/* {this.state.todoList.length===0
      ?(<p>您当前暂无待办事项</p>)
      :(<p>你当前有{this.state.todoList.length}条待办事项</p>)} */}
      {
        this.state.todoList.length===0 && (<p>您当前暂无待办事项</p>)       
      }
      {
         this.state.todoList.length!=0 && (<p>你当前有{this.state.todoList.length}条待办事项</p>)
      }
    </div>
    )
  }
}
